Driving mechanism for scotch feed



July 8, 1930. A. M. LANGLOIS 9 3 DRIVING MECHANISM FOR SCOTCH FEED FiledJuly 5, 1929 VJ a INVENTOR.

WE A -9 g BY (will. LIE 32. W g M an? ATTORNEYS.

Patented July 8, 1930 ALFRED M. LANGLOIS, or wHrrINsvILLE, mesa ssianaii smaaa To with:

MACHINE wonxs, or WHITINSVILLE, mssadavsswaea'businessmen sears- DRIVINGMECHANISM roe seamen seen Application filed July 3, 1 929. sensrno.375,747.

This invention relates to a So-called Scotch feed which is an attachmentfor intermediate feeding of wool from one section of a woolen card tothe next following section, as between the first and second breakercards.

In such Scotch feeds, a traveling carriage is provided which is movedback and forth across a delivery. or feeding apron transversely to itspath of feed. A pair of feed 16 is continuously rotated throughi a wormrolls or drums is mounted on the carriage and these carriage drums aredriven through a suitable connection from the apron feeding mechanism.

Accidents have occurred from the introduction of a foreign body betweenthecarriage drums. A solid body, such as a piece of metal, may causeinjury to the drums themselves, and a more serious condition arisesthrough the not infrequent catching of the operators hand between thecarriage drums. In this event, serious injury to the operator is usuallycaused.

It is the object of my invention to provide means by which such damageor injury may be practically eliminated;

To the attainment of this object, my inventio'n consists essentially inthe provision of a safety device in the driving mechanism, permittingthe carriage drums to be temporarily held from rotation when anobstruction is encountered by said drums, thus avoiding injury to thedrums or to the operator.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

A. preferred form of the invention is shown in the drawings in whichFig. 1 is an end elevation of portions of a Scotch feed embodying myimprovements;

Fig. 2 is a sectional side elevation thereof, taken along the line 22 ofFig. 1;

Fig. 3 is a detail sectional view, taken along the line 3-3 in Fig. 2,and

Fig. 4 is an enlarged sectional plan view through one of the carriagedrums and its driving mechanism.

Referring to the drawings, I have shown a Scotch feed comprising aframe10 in which carriage 16 a 'deliveryapron 121s su orted-0n ran-S 114 and'isslowly' advanced by feeding connections not shown. A carriage l6-iszsupported on upper'and lowershafts l7 and -18"'at the front of the;apron l2 and --is *reciprocated mounted oil-sprockets 22 andcontinuously driven through suitable gear -cbnnections.

rivertical driven shaft 30,- on the carriage wheel 3l and a worm'32';(Fig.- 2) from the lower supporting :shaift =18- which' isr also adriving shaft and is rotated by aebslt, {not shown, on a pulley'34.Theshaft 30 i's continuously rotated 1 in every; position of the 3 p airof carriage -drums, and 3,8;zare mountedon the drum shafts 40 and 41(Fig. and areipreferably provided w'ithaXia-lly extended ribs-or fins,42 which rotate in spaced relation} and loosely engage and feed thewoolsliverYW (Fig. 1). a j I Connecting gears 44 and 46' areniotiritedon the shafts 40 and 41 and cause the: carriage dfumsBS and-38 to rotatesimultaneously but in opposite directions. :The;gear';4tiisrpro videcl Iwith? a friction disc 5,0- of leather or other similar material, which'may -be cementediorotherwis suitably secured to one face of the gear44. A disc 52 is loosely mounted on the drum shaft 40 and a gear 54 isfixed on the axially extended hub 55 of the disc 52. A spring 56 isinterposed between the hub 55 and a collar 57 adj ustably secured on theshaft 40. The gear 54 is engaged by a gear 60 (Fig. '2) on anintermediate shaft 62 connected bevel gears -6364 with the verticalshaft 30 previously described.

Having described the details of construction of my improved drivingmechanism, the method of operation and the advantages thereof will bereadily understood.

Power is applied through the pulley 34 to the driving shaft 18, whichreciprocates the carriage 16 and also continuously rotates the uprightshaft 30 and the intermediate shaft 62 engages and continuously rotatesthe gear 54 and the friction disc 52 associated therewith.

The gear 54 and disc 52 are loose on the shaft 40 but rotate the gear 44through the friction disc 50. The gear 44, being fast on the shaft 40,rotates the carriage drums 36 and 38. If, however, rotation of the drumsis obstructed, the friction connection between the discs 52 and 50 willslip and damage or injury will thus be effectively avoided.

By a comparatively simple change in construction I have done away withthe possibility of the serious accidents which have heretofore beenencountered with this type of Scotch feed.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed otherwise than as setforth in the claims, but what I claim is 1. In a Scotch feed, atraveling carriage, means to drive said carriage, a pair of carriagedrums, shafts for said drums, and means to drive said drums from saidcarriage driving means as said carriage is reciprocated, said drivingmeans including a driving gear loose on one of said drum shafts,connecting gears fixed to said drum shafts, and a yieldable drivingconnection between said driving gear and one of said connecting gears.

2. In a Scotch feed, a traveling carriage, means to drive said carriage,a pair of carriage drums, shafts for said drums, and means to drive saiddrums from said carriage driving means as said carriage is reciprocated,said driving means including a driving gear loose on one of said drumshafts, connecting gears fixed to said drum shafts, and a yieldabledriving connection between said driving gear and one of said connectinggears, said yieldable connection including a pair of friction discs andmeans to press said discs yieldingly together.

In testimony whereof I have hereunto affixed my signature.

ALFRED M. LANGLOIS.

